Final answer:
The most highly associated set is C) Cortex, Axon, Dendrite, as these terms are directly related to the structure and function of neurons in the nervous system.
Step-by-step explanation:
In the context of the options provided, set C) Cortex, Axon, Dendrite are most highly associated. These three terms refer to parts of a neuron and its functions within the nervous system. The cortex refers to the outermost layer of the brain, involved in higher level processes such as consciousness, thought, and memory. An axon is a long, slender projection of a nerve cell that typically conducts electrical impulses away from the neuron's cell body. A dendrite is a branched extension of a neuron that receives impulses from other neurons and conducts them towards the cell body.